Kriminal Krolar SX-2

Released this very day, Krolar SX-2 was inspired by Roland's late-'70s synth the SH-2. This being the case, it comes with a similar set of features, though it does also benefit from the addition of a polyphonic mode (the original was monophonic only).

ElektroStudio Plug-ins

The ElektroStudio range contains several free instruments, including the eSLine virtual string machine, the Mellotron-inspired Tapeotronic, the Rhythmus beatbox (pictured above) and the DavoSynth. As well as running as VST plug-ins, you can also use them standalone.

Jeremy Evers Atlantis

Atlantis is a currently-in-beta synth that also comes with a dedicated effects module that can be used to process other audio. It's now skinnable (the one in the pic was created by Limeflavour) and looks like it could have quite a bit of potential. Give it a try.

Morfiki grANALiser

Described as a hybrid of a granulator and a delay, grANALiser promises the likes of chorus, pitchshifting and ring modulation. Even more intriguingly, we're told that it contains "explicit pixel animation that should only be viewed by adults". We should have guessed as much after seeing that name…

AcmeBarGig Cab Enhancer

AcmeBarGig's roster of free plug-ins is growing rapidly (in fact, it says that'll be releasing a new product every week for the foreseeable future). Cab Enhancer is designed not just to emulate a speaker cabinet, but also to enhance an existing mic'd or IR cab.

Xoxos Acoustic/Malt

A couple of new offerings from Xoxos: Malt (which is short for MIDI alt) uses an LFO to alternate between two MIDI channels; and Acoustic (pictured above) is described as a "simple acoustic body resonator model" (this is based on the resonator model from the company's Boing2 bowed synth).